to fire a soft/hard crowbar
Spanish translation: disparar / cortocircuito total (contra sobretensión)
| 11:59 Jun 20, 2001 |
| English to Spanish translations [PRO] Tech/Engineering | |||||
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|  Selected response from: Patricia Lutteral Argentina Local time: 14:54 | ||||
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| Summary of answers provided | ||||
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| na | activar |
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| na | disparar / cortocircuito total (contra sobretensión) |
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Answers
39 mins
activar Explanation: Es solo una idea, pero posiblemente aquí "fire" tenga más el sentido de "activar". |
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3 hrs
disparar / cortocircuito total (contra sobretensión) Explanation: Hola, David. Crowbar es un dispositivo de cortocircuito para casos de sobretensión. Me parece que puede usarse "disparar" o "accionar" para "fire". Ahora, soft y hard, no lo he logrado descubrir. Te paso lo que encontré; te recomiendo en especial el primer artículo: In the first case, the locomotive "fired" what is referred to as a hard crowbar; he also noted when this happened, the effect was worse than that of a ground relay tripping (this is very true; it is because you are producing much higher levels of voltage in the AC control systems than in the DC portions. The sudden removal of this level of power produces this effect). Here is the background: This feature is part of what is named the Inverter Protection System (IPS); it is in the SIBAS16 inverter control system, and it is there to protect the system's components from potentially damaging electrical imbalances. The "firing" of a hard crowbar creates an authentic dead short across the DC Link switchgear; this action causes the main generator to stop producing output and, in addition, immediately discharges the DC Link voltages by way of placing on-line numerous devices called bleeder resistors, which reduce the voltage levels to little or no degrees http://www.flash.net/~cymartin/crossxroads/74airbrk.htm The OVP scheme also provides a soft crowbar function (bang-bang control followed by blow of the fuse) which helps to tackle severe load transients but does not invert out-put voltage when activated-a common problem for OVP schemes with a latch www.fairchildsemi.com/ds/FA/FAN5230.pdf This `soft-crowbar' condition will be maintained until the output voltage returns to the regulation window and then normal operation will continue. This `soft-crowbar' and monitoring of the output, prevents the output voltage from ringing negative as the inductor current flows in the `reverse' direction through the lower MOSFET and output capacitors www.intersil.com/data/fn/fn4/fn4903/FN4903.pdf CROWBAR PROTECTION on units 15 amps and larger. http://www.tripplite.com/products/family/verters/230/230inde... CORTOCIRCUITO TOTAL AUTOMÁTICO DE PROTECCIÓN CONTRA SOBRETENSIONES en las unidades de 15 o más amperios http://www.tripplite.com/espanol/products_verters_230index.h... Crowbar : Electronic safety circuits which turn off power when current and/or voltage goes to a dangerous level http://www-bdnew.fnal.gov/operations/accgloss/gloss.html Espero que te sirva, saludos, Patricia |
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